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When Apple can release a version of OS X that works, I'll stop recommending a competing OS. Until then, I have no qualms with recommending an OS that actually works.

And so there's no confusion, when I say "works", what I mean is:

  1. It handles multiple monitors properly.
  2. It handles email properly. That is to say, mail.app can check for unread emails.
  3. It is capable of running without crazy lag on non SSD equipped computers.

To date, the last version of OS X that met all three of these (IMO quite reasonable) requirements was Snow Leopard. I'd like to say that I have high hopes for Yosemite, but early signs point to it looking like crap on non-Retina displays.


I don not use multiple monitors so i can't comment on that. The email app has worked perfectly for me since it was introduced and that didn't change on Mavericks. Lion and Mountain Lion does run without "crazy lag" on non-ssd, i have not tried Mavericks since i got a newer computer with only SSD some months before Mavericks was released. The only complaints i have heard about non-retina displays on Yosemite is the font, (which is easily changeable). This might not be known to new users or those that don't know much.
 
When Apple can release a version of OS X that works, I'll stop recommending a competing OS. Until then, I have no qualms with recommending an OS that actually works.

And so there's no confusion, when I say "works", what I mean is:

  1. It handles multiple monitors properly.
  2. It handles email properly. That is to say, mail.app can check for unread emails.
  3. It is capable of running without crazy lag on non SSD equipped computers.

To date, the last version of OS X that met all three of these (IMO quite reasonable) requirements was Snow Leopard. I'd like to say that I have high hopes for Yosemite, but early signs point to it looking like crap on non-Retina displays.

My better half is using a 13'' classic Macbook from - I think it was a 2012 Model may be a 2011 with a HDD - I am using a 2011 MBP with SSD and on the macbook of her isnt much going on she is listening to music and surfing the web and I dont really touch it that often, but sometimes I do and I am like - thats not too slow thats really responsive. It is running Mavericks. Maybe yours with a HDD needs a clean system or something even I normally do not recommend reinstalling OSX because its not really necessary.

To your 1. what to you mean handles multiple monitors properly? I am using multiple and dont know what could be missing. I understand if your argument is the way it worked in Lion for fullscreen apps but right now I have no idea.

To your 2. Mail App is working for me but there are many people complaining about it. Well I dont know whats going wrong with your instance but its working for the majority. And there are other Email managing applications out there for OSX.
 
To your 1. what to you mean handles multiple monitors properly? I am using multiple and dont know what could be missing. I understand if your argument is the way it worked in Lion for fullscreen apps but right now I have no idea.

Lion and Mountain Lion made multiple monitors useless if you wanted to take advantage of full-screen mode. The feature that is (soon to be) the default action for the green button, was useless for anyone with more than 1 monitor. And now that Apple finally fixed that issue, they went and messed up mail.app.

The email app has worked perfectly for me since it was introduced and that didn't change on Mavericks.

And when it works perfectly for me, I'll stop my complaining. In the mean time, I've lost countless days of work due to this bug. Keep in mind that this is an intermittent bug, so while mail.app works perfectly 99% of the time, it doesn't always work - but it works enough where I'm not about to switch to Outlook, and if I don't get an email I'm expecting I don't immediately think it's mail.app's fault.

http://support.apple.com/kb/TS5367 said:
Symptoms

For some email providers, new email messages in Mail may only appear to arrive when Mail is first opened. No new email arrives until Mail is quit and reopened.

Resolution

Quitting and reopening Mail forces it to re-establish a connection to the email server. You can use these steps to receive new mail messages without quitting Mail:

.....
 
Lion and Mountain Lion made multiple monitors useless if you wanted to take advantage of full-screen mode. The feature that is (soon to be) the default action for the green button, was useless for anyone with more than 1 monitor. And now that Apple finally fixed that issue, they went and messed up mail.app.

Yes multiple monitors where useless at that time but with Mavericks everything works as expected. The feature that is (soon to be) the default action of the green button messes nothing with using multiple monitors? It is moving the window in fullscreen - but option clicking it does the old thing. And even if its now moving the window in fullscreen and you are using multiple monitors the other ones do not get greyed out and are still usable as looking at the desktop or another fullscreen app - whatever you want on the other monitors
 
Yes multiple monitors where useless at that time but with Mavericks everything works as expected. The feature that is (soon to be) the default action of the green button messes nothing with using multiple monitors? It is moving the window in fullscreen - but option clicking it does the old thing. And even if its now moving the window in fullscreen and you are using multiple monitors the other ones do not get greyed out and are still usable as looking at the desktop or another fullscreen app - whatever you want on the other monitors

No, I was simply saying that it's considered a flagship feature, and it didn't work properly for 2 OS releases. And once they finally did get multiple monitors working, they went and screwed up email.
 
Just wondering how the test went? (if your friend came over):)

Thanks ;)

Yea, sorry late answer!

He came over, and it didn't run perfectly smooth, but it was still better than mine. I am still waiting for my mini display port -> display port cable to test.
 
Yea, sorry late answer!

He came over, and it didn't run perfectly smooth, but it was still better than mine. I am still waiting for my mini display port -> display port cable to test.

Lol, thanks for the reply, better late than never :D I guess the NVIDIA GeForce GT 750M does support 4K, but not very well. :|

Thanks
 
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Isn't it worth pointing out you have a 15" so either Iris Pro or a dGPU, so not the Iris that OP has.

You're correct... For some odd reason, I thought the integrated GPU was the same on the 13s and 15s.. :eek:
 
Hey guys,
I'd like to point out a solution I wrote up in a thread (https://forums.macrumors.com/threads/1741440/) a while back. The 13 inch 2013 rMBP CAN do 4K just fine at 52Hz. You'll need to use switchresx or manually input a display config. If you get switchresx and use the settings I posted in that thread you'll get it working.

The reason you can't do 60Hz is the Iris has a pixel clock limit of 450 MHz. This clock limit will let you get way past 30 Hz though which is nice! HDMI is stuck at 300 MHz. I find the 52 Hz pretty similar to 60 Hz... don't even notice the difference... unless you're trying to game, but let's be honest, there's no way you'll be able to do that at 4K on one of these machines.
 
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